[cleanup] Misc (#11216)

- Add Python 3.13 to CI, finalize 3.13 support
- Remove Python 3.8 from CI in preparation for removing 3.8 support
- Document that PyPy3.8 and PyPy3.9 are no longer supported
- Usual documentation fixes and code cleanup

Closes #8248, Closes #11146, Closes #11149, Closes #11211
Authored by: Grub4K, grqz, DTrombett, KarboniteKream, bashonly, mikkovedru, seproDev

Co-authored-by: N/Ame <173015200+grqz@users.noreply.github.com>
Co-authored-by: DTrombett <d@trombett.org>
Co-authored-by: =?UTF-8?q?Klemen=20Ko=C5=A1ir?= <klemen.kosir@kream.io>
Co-authored-by: bashonly <88596187+bashonly@users.noreply.github.com>
Co-authored-by: Mikko Vedru <mikko.vedru@gmail.com>
Co-authored-by: sepro <sepro@sepr0.com>

.github/workflows/core.yml

@@ -36,16 +36,20 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest]
-        # CPython 3.8 is in quick-test
+        # CPython 3.9 is in quick-test
-        python-version: ['3.9', '3.10', '3.11', '3.12', pypy-3.8, pypy-3.10]
+        python-version: ['3.10', '3.11', '3.12', '3.13', pypy-3.10]
         include:
         # atleast one of each CPython/PyPy tests must be in windows
         - os: windows-latest
-          python-version: '3.8'
+          python-version: '3.9'
+        - os: windows-latest
+          python-version: '3.10'
         - os: windows-latest
           python-version: '3.12'
         - os: windows-latest
-          python-version: pypy-3.9
+          python-version: '3.13'
+        - os: windows-latest
+          python-version: pypy-3.10
     steps:
     - uses: actions/checkout@v4
     - name: Set up Python ${{ matrix.python-version }}

.github/workflows/download.yml

@@ -28,13 +28,13 @@ jobs:
       fail-fast: true
       matrix:
         os: [ubuntu-latest]
-        python-version: ['3.10', '3.11', '3.12', pypy-3.8, pypy-3.10]
+        python-version: ['3.10', '3.11', '3.12', '3.13', pypy-3.10]
         include:
         # atleast one of each CPython/PyPy tests must be in windows
         - os: windows-latest
-          python-version: '3.8'
+          python-version: '3.9'
         - os: windows-latest
-          python-version: pypy-3.9
+          python-version: pypy-3.10
     steps:
     - uses: actions/checkout@v4
     - name: Set up Python ${{ matrix.python-version }}

.github/workflows/quick-test.yml

@@ -10,10 +10,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v4
-    - name: Set up Python 3.8
+    - name: Set up Python 3.9
       uses: actions/setup-python@v5
       with:
-        python-version: '3.8'
+        python-version: '3.9'
     - name: Install test requirements
       run: python3 ./devscripts/install_deps.py -o --include test
     - name: Run tests
@@ -29,7 +29,7 @@ jobs:
     - uses: actions/checkout@v4
     - uses: actions/setup-python@v5
       with:
-        python-version: '3.8'
+        python-version: '3.9'
     - name: Install dev dependencies
       run: python3 ./devscripts/install_deps.py -o --include static-analysis
     - name: Make lazy extractors

CONTRIBUTING.md

@@ -233,7 +233,7 @@ ## Adding support for a new site
                 # * MD5 checksum; start the string with 'md5:', e.g.
                 #     'description': 'md5:098f6bcd4621d373cade4e832627b4f6',
                 # * A regular expression; start the string with 're:', e.g.
-                #     'thumbnail': r're:^https?://.*\.jpg$',
+                #     'thumbnail': r're:https?://.*\.jpg$',
                 # * A count of elements in a list; start the string with 'count:', e.g.
                 #     'tags': 'count:10',
                 # * Any Python type, e.g.
@@ -268,7 +268,7 @@ ## Adding support for a new site
 
     You can use `hatch fmt` to automatically fix problems. Rules that the linter/formatter enforces should not be disabled with `# noqa` unless a maintainer requests it. The only exception allowed is for old/printf-style string formatting in GraphQL query templates (use `# noqa: UP031`).
 
-1. Make sure your code works under all [Python](https://www.python.org/) versions supported by yt-dlp, namely CPython and PyPy for Python 3.8 and above. Backward compatibility is not required for even older versions of Python.
+1. Make sure your code works under all [Python](https://www.python.org/) versions supported by yt-dlp, namely CPython >=3.8 and PyPy >=3.10. Backward compatibility is not required for even older versions of Python.
 1. When the tests pass, [add](https://git-scm.com/docs/git-add) the new files, [commit](https://git-scm.com/docs/git-commit) them and [push](https://git-scm.com/docs/git-push) the result, like this:
 
     ```shell
@@ -302,10 +302,9 @@ ### Mandatory and optional metafields
 For extraction to work yt-dlp relies on metadata your extractor extracts and provides to yt-dlp expressed by an [information dictionary](yt_dlp/extractor/common.py#L119-L440) or simply *info dict*. Only the following meta fields in the *info dict* are considered mandatory for a successful extraction process by yt-dlp:
 
  - `id` (media identifier)
- - `title` (media title)
  - `url` (media download URL) or `formats`
 
-The aforementioned metafields are the critical data that the extraction does not make any sense without and if any of them fail to be extracted then the extractor is considered completely broken. While all extractors must return a `title`, they must also allow it's extraction to be non-fatal.
+The aforementioned metadata fields are the critical data without which extraction does not make any sense. If any of them fail to be extracted, then the extractor is considered broken. All other metadata extraction should be completely non-fatal.
 
 For pornographic sites, appropriate `age_limit` must also be returned.
 

README.md

@@ -4,7 +4,7 @@
 [![YT-DLP](https://raw.githubusercontent.com/yt-dlp/yt-dlp/master/.github/banner.svg)](#readme)
 
 [![Release version](https://img.shields.io/github/v/release/yt-dlp/yt-dlp?color=brightgreen&label=Download&style=for-the-badge)](#installation "Installation")
-[![PyPi](https://img.shields.io/badge/-PyPi-blue.svg?logo=pypi&labelColor=555555&style=for-the-badge)](https://pypi.org/project/yt-dlp "PyPi")
+[![PyPI](https://img.shields.io/badge/-PyPI-blue.svg?logo=pypi&labelColor=555555&style=for-the-badge)](https://pypi.org/project/yt-dlp "PyPI")
 [![Donate](https://img.shields.io/badge/_-Donate-red.svg?logo=githubsponsors&labelColor=555555&style=for-the-badge)](Collaborators.md#collaborators "Donate")
 [![Matrix](https://img.shields.io/matrix/yt-dlp:matrix.org?color=brightgreen&labelColor=555555&label=&logo=element&style=for-the-badge)](https://matrix.to/#/#yt-dlp:matrix.org "Matrix")
 [![Discord](https://img.shields.io/discord/807245652072857610?color=blue&labelColor=555555&label=&logo=discord&style=for-the-badge)](https://discord.gg/H5MNcFW63r "Discord")
@@ -81,7 +81,7 @@ # INSTALLATION
 [![Windows](https://img.shields.io/badge/-Windows_x64-blue.svg?style=for-the-badge&logo=windows)](https://github.com/yt-dlp/yt-dlp/releases/latest/download/yt-dlp.exe)
 [![Unix](https://img.shields.io/badge/-Linux/BSD-red.svg?style=for-the-badge&logo=linux)](https://github.com/yt-dlp/yt-dlp/releases/latest/download/yt-dlp)
 [![MacOS](https://img.shields.io/badge/-MacOS-lightblue.svg?style=for-the-badge&logo=apple)](https://github.com/yt-dlp/yt-dlp/releases/latest/download/yt-dlp_macos)
-[![PyPi](https://img.shields.io/badge/-PyPi-blue.svg?logo=pypi&labelColor=555555&style=for-the-badge)](https://pypi.org/project/yt-dlp)
+[![PyPI](https://img.shields.io/badge/-PyPI-blue.svg?logo=pypi&labelColor=555555&style=for-the-badge)](https://pypi.org/project/yt-dlp)
 [![Source Tarball](https://img.shields.io/badge/-Source_tar-green.svg?style=for-the-badge)](https://github.com/yt-dlp/yt-dlp/releases/latest/download/yt-dlp.tar.gz)
 [![Other variants](https://img.shields.io/badge/-Other-grey.svg?style=for-the-badge)](#release-files)
 [![All versions](https://img.shields.io/badge/-All_Versions-lightgrey.svg?style=for-the-badge)](https://github.com/yt-dlp/yt-dlp/releases)
@@ -172,11 +172,11 @@ # To install nightly with pip:
 ```
 
 ## DEPENDENCIES
-Python versions 3.8+ (CPython and PyPy) are supported. Other versions and implementations may or may not work correctly.
+Python versions 3.8+ (CPython) and 3.10+ (PyPy) are supported. Other versions and implementations may or may not work correctly.
 
 <!-- Python 3.5+ uses VC++14 and it is already embedded in the binary created
 <!x-- https://www.microsoft.com/en-us/download/details.aspx?id=26999 --x>
-On windows, [Microsoft Visual C++ 2010 SP1 Redistributable Package (x86)](https://download.microsoft.com/download/1/6/5/165255E7-1014-4D0A-B094-B6A430A6BFFC/vcredist_x86.exe) is also necessary to run yt-dlp. You probably already have this, but if the executable throws an error due to missing `MSVCR100.dll` you need to install it manually.
+On Windows, [Microsoft Visual C++ 2010 SP1 Redistributable Package (x86)](https://download.microsoft.com/download/1/6/5/165255E7-1014-4D0A-B094-B6A430A6BFFC/vcredist_x86.exe) is also necessary to run yt-dlp. You probably already have this, but if the executable throws an error due to missing `MSVCR100.dll` you need to install it manually.
 -->
 
 While all the other dependencies are optional, `ffmpeg` and `ffprobe` are highly recommended
@@ -438,10 +438,10 @@ ## Video Selection:
                                     E.g. "--date today-2weeks" downloads only
                                     videos uploaded on the same day two weeks ago
     --datebefore DATE               Download only videos uploaded on or before
-                                    this date. The date formats accepted is the
+                                    this date. The date formats accepted are the
                                     same as --date
     --dateafter DATE                Download only videos uploaded on or after
-                                    this date. The date formats accepted is the
+                                    this date. The date formats accepted are the
                                     same as --date
     --match-filters FILTER          Generic video filter. Any "OUTPUT TEMPLATE"
                                     field can be compared with a number or a
@@ -726,16 +726,16 @@ ## Verbosity and Simulation Options:
                                     used. This option can be used multiple times
     --print-to-file [WHEN:]TEMPLATE FILE
                                     Append given template to the file. The
-                                    values of WHEN and TEMPLATE are same as that
+                                    values of WHEN and TEMPLATE are the same as
-                                    of --print. FILE uses the same syntax as the
+                                    that of --print. FILE uses the same syntax
-                                    output template. This option can be used
+                                    as the output template. This option can be
-                                    multiple times
+                                    used multiple times
     -j, --dump-json                 Quiet, but print JSON information for each
                                     video. Simulate unless --no-simulate is
                                     used. See "OUTPUT TEMPLATE" for a
                                     description of available keys
     -J, --dump-single-json          Quiet, but print JSON information for each
-                                    url or infojson passed. Simulate unless
+                                    URL or infojson passed. Simulate unless
                                     --no-simulate is used. If the URL refers to
                                     a playlist, the whole playlist information
                                     is dumped in a single line
@@ -810,9 +810,9 @@ ## Video Format Options:
     --no-audio-multistreams         Only one audio stream is downloaded for each
                                     output file (default)
     --prefer-free-formats           Prefer video formats with free containers
-                                    over non-free ones of same quality. Use with
+                                    over non-free ones of the same quality. Use
-                                    "-S ext" to strictly prefer free containers
+                                    with "-S ext" to strictly prefer free
-                                    irrespective of quality
+                                    containers irrespective of quality
     --no-prefer-free-formats        Don't give any special preference to free
                                     containers (default)
     --check-formats                 Make sure formats are selected only from
@@ -837,15 +837,17 @@ ## Subtitle Options:
                                     (default) (Alias: --no-write-automatic-subs)
     --list-subs                     List available subtitles of each video.
                                     Simulate unless --no-simulate is used
-    --sub-format FORMAT             Subtitle format; accepts formats preference,
+    --sub-format FORMAT             Subtitle format; accepts formats preference
-                                    e.g. "srt" or "ass/srt/best"
+                                    separated by "/", e.g. "srt" or "ass/srt/best"
     --sub-langs LANGS               Languages of the subtitles to download (can
                                     be regex) or "all" separated by commas, e.g.
-                                    --sub-langs "en.*,ja". You can prefix the
+                                    --sub-langs "en.*,ja" (where "en.*" is a
-                                    language code with a "-" to exclude it from
+                                    regex pattern that matches "en" followed by
-                                    the requested languages, e.g. --sub-langs
+                                    0 or more of any character). You can prefix
-                                    all,-live_chat. Use --list-subs for a list
+                                    the language code with a "-" to exclude it
-                                    of available language tags
+                                    from the requested languages, e.g. --sub-
+                                    langs all,-live_chat. Use --list-subs for a
+                                    list of available language tags
 
 ## Authentication Options:
     -u, --username USERNAME         Login with this account ID
@@ -893,9 +895,9 @@ ## Post-Processing Options:
                                     necessary (currently supported: avi, flv,
                                     gif, mkv, mov, mp4, webm, aac, aiff, alac,
                                     flac, m4a, mka, mp3, ogg, opus, vorbis,
-                                    wav). If target container does not support
+                                    wav). If the target container does not
-                                    the video/audio codec, remuxing will fail.
+                                    support the video/audio codec, remuxing will
-                                    You can specify multiple rules; e.g.
+                                    fail. You can specify multiple rules; e.g.
                                     "aac>m4a/mov>mp4/mkv" will remux aac to m4a,
                                     mov to mp4 and anything else to mkv
     --recode-video FORMAT           Re-encode the video into another format if
@@ -963,29 +965,29 @@ ## Post-Processing Options:
                                     are the same as that of --use-postprocessor
                                     (default: pre_process)
     --xattrs                        Write metadata to the video file's xattrs
-                                    (using dublin core and xdg standards)
+                                    (using Dublin Core and XDG standards)
     --concat-playlist POLICY        Concatenate videos in a playlist. One of
                                     "never", "always", or "multi_video"
                                     (default; only when the videos form a single
-                                    show). All the video files must have same
+                                    show). All the video files must have the
-                                    codecs and number of streams to be
+                                    same codecs and number of streams to be
-                                    concatable. The "pl_video:" prefix can be
+                                    concatenable. The "pl_video:" prefix can be
                                     used with "--paths" and "--output" to set
                                     the output filename for the concatenated
                                     files. See "OUTPUT TEMPLATE" for details
     --fixup POLICY                  Automatically correct known faults of the
                                     file. One of never (do nothing), warn (only
                                     emit a warning), detect_or_warn (the
-                                    default; fix file if we can, warn
+                                    default; fix the file if we can, warn
-                                    otherwise), force (try fixing even if file
+                                    otherwise), force (try fixing even if the
-                                    already exists)
+                                    file already exists)
     --ffmpeg-location PATH          Location of the ffmpeg binary; either the
                                     path to the binary or its containing directory
     --exec [WHEN:]CMD               Execute a command, optionally prefixed with
                                     when to execute it, separated by a ":".
                                     Supported values of "WHEN" are the same as
                                     that of --use-postprocessor (default:
-                                    after_move). Same syntax as the output
+                                    after_move). The same syntax as the output
                                     template can be used to pass any field as
                                     arguments to the command. If no fields are
                                     passed, %(filepath,_filename|)q is appended
@@ -1023,7 +1025,7 @@ ## Post-Processing Options:
     --no-force-keyframes-at-cuts    Do not force keyframes around the chapters
                                     when cutting/splitting (default)
     --use-postprocessor NAME[:ARGS]
-                                    The (case sensitive) name of plugin
+                                    The (case-sensitive) name of plugin
                                     postprocessors to be enabled, and
                                     (optionally) arguments to be passed to it,
                                     separated by a colon ":". ARGS are a
@@ -1036,8 +1038,8 @@ ## Post-Processing Options:
                                     --print/--output), "before_dl" (before each
                                     video download), "post_process" (after each
                                     video download; default), "after_move"
-                                    (after moving video file to its final
+                                    (after moving the video file to its final
-                                    locations), "after_video" (after downloading
+                                    location), "after_video" (after downloading
                                     and processing all formats of a video), or
                                     "playlist" (at end of playlist). This option
                                     can be used multiple times to add different
@@ -1055,7 +1057,7 @@ ## SponsorBlock Options:
                                     music_offtopic, poi_highlight, chapter, all
                                     and default (=all). You can prefix the
                                     category with a "-" to exclude it. See [1]
-                                    for description of the categories. E.g.
+                                    for descriptions of the categories. E.g.
                                     --sponsorblock-mark all,-preview
                                     [1] https://wiki.sponsor.ajay.app/w/Segment_Categories
     --sponsorblock-remove CATS      SponsorBlock categories to be removed from
@@ -1087,7 +1089,7 @@ ## Extractor Options:
                                     (Alias: --no-allow-dynamic-mpd)
     --hls-split-discontinuity       Split HLS playlists to different formats at
                                     discontinuities such as ad breaks
-    --no-hls-split-discontinuity    Do not split HLS playlists to different
+    --no-hls-split-discontinuity    Do not split HLS playlists into different
                                     formats at discontinuities such as ad breaks
                                     (default)
     --extractor-args IE_KEY:ARGS    Pass ARGS arguments to the IE_KEY extractor.
@@ -1097,7 +1099,7 @@ ## Extractor Options:
 
 # CONFIGURATION
 
-You can configure yt-dlp by placing any supported command line option to a configuration file. The configuration is loaded from the following locations:
+You can configure yt-dlp by placing any supported command line option in a configuration file. The configuration is loaded from the following locations:
 
 1. **Main Configuration**:
     * The file given to `--config-location`
@@ -1142,7 +1144,7 @@ # Save all videos under YouTube directory in your home directory
 -o ~/YouTube/%(title)s.%(ext)s
 ```
 
-**Note**: Options in configuration file are just the same options aka switches used in regular command line calls; thus there **must be no whitespace** after `-` or `--`, e.g. `-o` or `--proxy` but not `- o` or `-- proxy`. They must also be quoted when necessary, as if it were a UNIX shell.
+**Note**: Options in a configuration file are just the same options aka switches used in regular command line calls; thus there **must be no whitespace** after `-` or `--`, e.g. `-o` or `--proxy` but not `- o` or `-- proxy`. They must also be quoted when necessary, as if it were a UNIX shell.
 
 You can use `--ignore-config` if you want to disable all configuration files for a particular yt-dlp run. If `--ignore-config` is found inside any configuration file, no further configuration will be loaded. For example, having the option in the portable configuration file prevents loading of home, user, and system configurations. Additionally, (for backward compatibility) if `--ignore-config` is found inside the system configuration file, the user configuration is not loaded.
 
@@ -1176,13 +1178,13 @@ ### Authentication with netrc
 
 E.g. To use an encrypted `.netrc` file stored as `.authinfo.gpg`
 ```
-yt-dlp --netrc-cmd 'gpg --decrypt ~/.authinfo.gpg' https://www.youtube.com/watch?v=BaW_jenozKc
+yt-dlp --netrc-cmd 'gpg --decrypt ~/.authinfo.gpg' 'https://www.youtube.com/watch?v=BaW_jenozKc'
 ```
 
 
 ### Notes about environment variables
 * Environment variables are normally specified as `${VARIABLE}`/`$VARIABLE` on UNIX and `%VARIABLE%` on Windows; but is always shown as `${VARIABLE}` in this documentation
-* yt-dlp also allow using UNIX-style variables on Windows for path-like options; e.g. `--output`, `--config-location`
+* yt-dlp also allows using UNIX-style variables on Windows for path-like options; e.g. `--output`, `--config-location`
 * If unset, `${XDG_CONFIG_HOME}` defaults to `~/.config` and `${XDG_CACHE_HOME}` to `~/.cache`
 * On Windows, `~` points to `${HOME}` if present; or, `${USERPROFILE}` or `${HOMEDRIVE}${HOMEPATH}` otherwise
 * On Windows, `${USERPROFILE}` generally points to `C:\Users\<user name>` and `${APPDATA}` to `${USERPROFILE}\AppData\Roaming`
@@ -1263,7 +1265,7 @@ # OUTPUT TEMPLATE
  - `like_count` (numeric): Number of positive ratings of the video
  - `dislike_count` (numeric): Number of negative ratings of the video
  - `repost_count` (numeric): Number of reposts of the video
- - `average_rating` (numeric): Average rating give by users, the scale used depends on the webpage
+ - `average_rating` (numeric): Average rating given by users, the scale used depends on the webpage
  - `comment_count` (numeric): Number of comments on the video (For some extractors, comments are only downloaded at the end, and so this field cannot be used)
  - `age_limit` (numeric): Age restriction for the video (years)
  - `live_status` (string): One of "not_live", "is_live", "is_upcoming", "was_live", "post_live" (was live, but VOD is not yet processed)
@@ -1293,7 +1295,7 @@ # OUTPUT TEMPLATE
  - `webpage_url` (string): A URL to the video webpage which, if given to yt-dlp, should yield the same result again
  - `webpage_url_basename` (string): The basename of the webpage URL
  - `webpage_url_domain` (string): The domain of the webpage URL
- - `original_url` (string): The URL given by the user (or same as `webpage_url` for playlist entries)
+ - `original_url` (string): The URL given by the user (or the same as `webpage_url` for playlist entries)
  - `categories` (list): List of categories the video belongs to
  - `tags` (list): List of tags assigned to the video
  - `cast` (list): List of cast members
@@ -1370,7 +1372,7 @@ # OUTPUT TEMPLATE
 
 **Tip**: Look at the `-j` output to identify which fields are available for the particular URL
 
-For numeric sequences you can use [numeric related formatting](https://docs.python.org/3/library/stdtypes.html#printf-style-string-formatting); e.g. `%(view_count)05d` will result in a string with view count padded with zeros up to 5 characters, like in `00042`.
+For numeric sequences, you can use [numeric related formatting](https://docs.python.org/3/library/stdtypes.html#printf-style-string-formatting); e.g. `%(view_count)05d` will result in a string with view count padded with zeros up to 5 characters, like in `00042`.
 
 Output templates can also contain arbitrary hierarchical path, e.g. `-o "%(playlist)s/%(playlist_index)s - %(title)s.%(ext)s"` which will result in downloading each video in a directory corresponding to this path template. Any missing directory will be automatically created for you.
 
@@ -1412,7 +1414,7 @@ # Download entire series season keeping each series and each season in separate
 
 # Download video as "C:\MyVideos\uploader\title.ext", subtitles as "C:\MyVideos\subs\uploader\title.ext"
 # and put all temporary files in "C:\MyVideos\tmp"
-$ yt-dlp -P "C:/MyVideos" -P "temp:tmp" -P "subtitle:subs" -o "%(uploader)s/%(title)s.%(ext)s" BaW_jenoz --write-subs
+$ yt-dlp -P "C:/MyVideos" -P "temp:tmp" -P "subtitle:subs" -o "%(uploader)s/%(title)s.%(ext)s" BaW_jenozKc --write-subs
 
 # Download video as "C:\MyVideos\uploader\title.ext" and subtitles as "C:\MyVideos\uploader\subs\title.ext"
 $ yt-dlp -P "C:/MyVideos" -o "%(uploader)s/%(title)s.%(ext)s" -o "subtitle:%(uploader)s/subs/%(title)s.%(ext)s" BaW_jenozKc --write-subs
@@ -1630,11 +1632,11 @@ # Download the best video (that also has audio) but no bigger than 50 MB,
 # or the worst video (that also has audio) if there is no video under 50 MB
 $ yt-dlp -f "b[filesize<50M] / w"
 
-# Download largest video (that also has audio) but no bigger than 50 MB,
+# Download the largest video (that also has audio) but no bigger than 50 MB,
 # or the smallest video (that also has audio) if there is no video under 50 MB
 $ yt-dlp -f "b" -S "filesize:50M"
 
-# Download best video (that also has audio) that is closest in size to 50 MB
+# Download the best video (that also has audio) that is closest in size to 50 MB
 $ yt-dlp -f "b" -S "filesize~50M"
 
 
@@ -1690,7 +1692,7 @@ # MODIFYING METADATA
 
 The general syntax of `--parse-metadata FROM:TO` is to give the name of a field or an [output template](#output-template) to extract data from, and the format to interpret it as, separated by a colon `:`. Either a [Python regular expression](https://docs.python.org/3/library/re.html#regular-expression-syntax) with named capture groups, a single field name, or a similar syntax to the [output template](#output-template) (only `%(field)s` formatting is supported) can be used for `TO`. The option can be used multiple times to parse and modify various fields.
 
-Note that these options preserve their relative order, allowing replacements to be made in parsed fields and viceversa. Also, any field thus created can be used in the [output template](#output-template) and will also affect the media file's metadata added when using `--embed-metadata`.
+Note that these options preserve their relative order, allowing replacements to be made in parsed fields and vice versa. Also, any field thus created can be used in the [output template](#output-template) and will also affect the media file's metadata added when using `--embed-metadata`.
 
 This option also has a few special uses:
 
@@ -1765,7 +1767,7 @@ # EXTRACTOR ARGUMENTS
 #### youtube
 * `lang`: Prefer translated metadata (`title`, `description` etc) of this language code (case-sensitive). By default, the video primary language metadata is preferred, with a fallback to `en` translated. See [youtube.py](https://github.com/yt-dlp/yt-dlp/blob/c26f9b991a0681fd3ea548d535919cec1fbbd430/yt_dlp/extractor/youtube.py#L381-L390) for list of supported content language codes
 * `skip`: One or more of `hls`, `dash` or `translated_subs` to skip extraction of the m3u8 manifests, dash manifests and [auto-translated subtitles](https://github.com/yt-dlp/yt-dlp/issues/4090#issuecomment-1158102032) respectively
-* `player_client`: Clients to extract video data from. The main clients are `web`, `ios` and `android`, with variants `_music` and `_creator` (e.g. `ios_creator`); and `mediaconnect`, `mweb`, `android_producer`, `android_testsuite`, `android_vr`, `web_safari`, `web_embedded`, `tv` and `tv_embedded` with no variants. By default, `ios,mweb` is used, and `tv_embedded`, `web_creator` and `mediaconnect` are added as required for age-gated videos. Similarly, the music variants are added for `music.youtube.com` urls. Most `android` clients will be given lowest priority since their formats are broken. You can use `all` to use all the clients, and `default` for the default clients. You can prefix a client with `-` to exclude it, e.g. `youtube:player_client=all,-web`
+* `player_client`: Clients to extract video data from. The main clients are `web`, `ios` and `android`, with variants `_music` and `_creator` (e.g. `ios_creator`); and `mediaconnect`, `mweb`, `android_producer`, `android_testsuite`, `android_vr`, `web_safari`, `web_embedded`, `tv` and `tv_embedded` with no variants. By default, `ios,mweb` is used, and `tv_embedded`, `web_creator` and `mediaconnect` are added as required for age-gated videos. Similarly, the music variants are added for `music.youtube.com` URLs. Most `android` clients will be given lowest priority since their formats are broken. You can use `all` to use all the clients, and `default` for the default clients. You can prefix a client with `-` to exclude it, e.g. `youtube:player_client=all,-web`
 * `player_skip`: Skip some network requests that are generally needed for robust extraction. One or more of `configs` (skip client configs), `webpage` (skip initial webpage), `js` (skip js player). While these options can help reduce the number of requests needed or avoid some rate-limiting, they could cause some issues. See [#860](https://github.com/yt-dlp/yt-dlp/pull/860) for more details
 * `player_params`: YouTube player parameters to use for player requests. Will overwrite any default ones set by yt-dlp.
 * `comment_sort`: `top` or `new` (default) - choose comment sorting mode (on YouTube's side)
@@ -2198,7 +2200,7 @@ ### Differences in default behavior
 
 Some of yt-dlp's default options are different from that of youtube-dl and youtube-dlc:
 
-* yt-dlp supports only [Python 3.8+](## "Windows 7"), and *may* remove support for more versions as they [become EOL](https://devguide.python.org/versions/#python-release-cycle); while [youtube-dl still supports Python 2.6+ and 3.2+](https://github.com/ytdl-org/youtube-dl/issues/30568#issue-1118238743)
+* yt-dlp supports only [Python 3.8+](## "Windows 7"), and will remove support for more versions as they [become EOL](https://devguide.python.org/versions/#python-release-cycle); while [youtube-dl still supports Python 2.6+ and 3.2+](https://github.com/ytdl-org/youtube-dl/issues/30568#issue-1118238743)
 * The options `--auto-number` (`-A`), `--title` (`-t`) and `--literal` (`-l`), no longer work. See [removed options](#Removed) for details
 * `avconv` is not supported as an alternative to `ffmpeg`
 * yt-dlp stores config files in slightly different locations to youtube-dl. See [CONFIGURATION](#configuration) for a list of correct locations
@@ -2274,8 +2276,8 @@ #### Redundant options
     --min-views COUNT                --match-filters "view_count >=? COUNT"
     --max-views COUNT                --match-filters "view_count <=? COUNT"
     --break-on-reject                Use --break-match-filters
-    --user-agent UA                  --add-header "User-Agent:UA"
+    --user-agent UA                  --add-headers "User-Agent:UA"
-    --referer URL                    --add-header "Referer:URL"
+    --referer URL                    --add-headers "Referer:URL"
     --playlist-start NUMBER          -I NUMBER:
     --playlist-end NUMBER            -I :NUMBER
     --playlist-reverse               -I ::-1

devscripts/changelog_override.json

@@ -196,5 +196,15 @@
         "when": "b31b81d85f00601710d4fac590c3e4efb4133283",
         "short": "[ci] Rerun failed tests (#11143)",
         "authors": ["Grub4K"]
+    },
+    {
+        "action": "add",
+        "when": "a886cf3e900f4a2ec00af705f883539269545609",
+        "short": "[priority] **py2exe is no longer supported**\nThis release's `yt-dlp_min.exe` will be the last, and it's actually a PyInstaller-bundled executable so that yt-dlp users updating their py2exe build with `-U` will be automatically migrated. [Read more](https://github.com/yt-dlp/yt-dlp/issues/10087)"
+    },
+    {
+        "action": "add",
+        "when": "a886cf3e900f4a2ec00af705f883539269545609",
+        "short": "[priority] **Following this release, yt-dlp's Python dependencies *must* be installed using the `default` group**\nIf you're installing yt-dlp with pip/pipx or requiring yt-dlp in your own Python project, you'll need to specify `yt-dlp[default]` if you want to also install yt-dlp's optional dependencies (which were previously included by default). [Read more](https://github.com/yt-dlp/yt-dlp/pull/11255)"
     }
 ]

pyproject.toml

@@ -34,6 +34,7 @@ classifiers = [
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
     "Programming Language :: Python :: Implementation",
     "Programming Language :: Python :: Implementation :: CPython",
     "Programming Language :: Python :: Implementation :: PyPy",
@@ -169,13 +170,11 @@ run-cov = "echo Code coverage not implemented && exit 1"
 
 [[tool.hatch.envs.hatch-test.matrix]]
 python = [
-    "3.8",
     "3.9",
     "3.10",
     "3.11",
     "3.12",
-    "pypy3.8",
+    "3.13",
-    "pypy3.9",
     "pypy3.10",
 ]
 

setup.cfg

@@ -16,7 +16,7 @@ remove-unused-variables = true
 
 [tox:tox]
 skipsdist = true
-envlist = py{38,39,310,311,312},pypy{38,39,310}
+envlist = py{39,310,311,312,313},pypy310
 skip_missing_interpreters = true
 
 [testenv]  # tox

yt_dlp/YoutubeDL.py

@@ -154,7 +154,6 @@
     try_get,
     url_basename,
     variadic,
-    version_tuple,
     windows_enable_vt_mode,
     write_json_file,
     write_string,
@@ -251,7 +250,7 @@ class YoutubeDL:
     format_sort_force: Force the given format_sort. see "Sorting Formats"
                        for more details.
     prefer_free_formats: Whether to prefer video formats with free containers
-                       over non-free ones of same quality.
+                       over non-free ones of the same quality.
     allow_multiple_video_streams:   Allow multiple video streams to be merged
                        into a single file
     allow_multiple_audio_streams:   Allow multiple audio streams to be merged
@@ -285,7 +284,7 @@ class YoutubeDL:
     rejecttitle:       Reject downloads for matching titles.
     logger:            Log messages to a logging.Logger instance.
     logtostderr:       Print everything to stderr instead of stdout.
-    consoletitle:      Display progress in console window's titlebar.
+    consoletitle:      Display progress in the console window's titlebar.
     writedescription:  Write the video description to a .description file
     writeinfojson:     Write the video description to a .info.json file
     clean_infojson:    Remove internal metadata from the infojson
@@ -513,7 +512,7 @@ class YoutubeDL:
     The following options are used by the extractors:
     extractor_retries: Number of times to retry for known errors (default: 3)
     dynamic_mpd:       Whether to process dynamic DASH manifests (default: True)
-    hls_split_discontinuity: Split HLS playlists to different formats at
+    hls_split_discontinuity: Split HLS playlists into different formats at
                        discontinuities such as ad breaks (default: False)
     extractor_args:    A dictionary of arguments to be passed to the extractors.
                        See "EXTRACTOR ARGUMENTS" for details.
@@ -553,7 +552,7 @@ class YoutubeDL:
     include_ads:       - Doesn't work
                        Download ads as well
     call_home:         - Not implemented
-                       Boolean, true iff we are allowed to contact the
+                       Boolean, true if we are allowed to contact the
                        yt-dlp servers for debugging.
     post_hooks:        - Register a custom postprocessor
                        A list of functions that get called as the final step
@@ -4089,17 +4088,6 @@ def get_encoding(stream):
         if plugin_dirs:
             write_debug(f'Plugin directories: {plugin_dirs}')
 
-        # Not implemented
-        if False and self.params.get('call_home'):
-            ipaddr = self.urlopen('https://yt-dl.org/ip').read().decode()
-            write_debug(f'Public IP address: {ipaddr}')
-            latest_version = self.urlopen(
-                'https://yt-dl.org/latest/version').read().decode()
-            if version_tuple(latest_version) > version_tuple(__version__):
-                self.report_warning(
-                    f'You are using an outdated version (newest version: {latest_version})! '
-                    'See https://yt-dl.org/update if you need help updating.')
-
     @functools.cached_property
     def proxies(self):
         """Global proxy configuration"""

yt_dlp/extractor/common.py

@@ -333,7 +333,7 @@ class InfoExtractor:
     like_count:     Number of positive ratings of the video
     dislike_count:  Number of negative ratings of the video
     repost_count:   Number of reposts of the video
-    average_rating: Average rating give by users, the scale used depends on the webpage
+    average_rating: Average rating given by users, the scale used depends on the webpage
     comment_count:  Number of comments on the video
     comments:       A list of comments, each with one or more of the following
                     properties (all but one of text or html optional):
@@ -520,7 +520,7 @@ class InfoExtractor:
     or _extract_from_webpage as necessary. While these are normally classmethods,
     _extract_from_webpage is allowed to be an instance method.
 
-    _extract_from_webpage may raise self.StopExtraction() to stop further
+    _extract_from_webpage may raise self.StopExtraction to stop further
     processing of the webpage and obtain exclusive rights to it. This is useful
     when the extractor cannot reliably be matched using just the URL,
     e.g. invidious/peertube instances

yt_dlp/extractor/nexx.py

@@ -371,7 +371,7 @@ def find_video(result):
         # not all videos work via arc, e.g. nexx:741:1269984
         if not video:
             # Reverse engineered from JS code (see getDeviceID function)
-            device_id = f'{random.randint(1, 4)}:{int(time.time())}:{random.randint(1e4, 99999)}{random.randint(1, 9)}'
+            device_id = f'{random.randint(1, 4)}:{int(time.time())}:{random.randint(10000, 99999)}{random.randint(1, 9)}'
 
             result = self._call_api(domain_id, 'session/init', video_id, data={
                 'nxp_devh': device_id,

yt_dlp/extractor/tubetugraz.py

@@ -236,7 +236,7 @@ class TubeTuGrazSeriesIE(TubeTuGrazBaseIE):
                 },
             },
         ],
-        'min_playlist_count': 4,
+        'playlist_mincount': 4,
     }]
 
     def _real_extract(self, url):

yt_dlp/extractor/ustream.py

@@ -73,7 +73,7 @@ def _get_stream_info(self, url, video_id, app_id_ver, extra_note=None):
         def num_to_hex(n):
             return hex(n)[2:]
 
-        rnd = random.randrange
+        rnd = lambda x: random.randrange(int(x))
 
         if not extra_note:
             extra_note = ''

yt_dlp/extractor/veoh.py

@@ -8,7 +8,8 @@
     int_or_none,
     parse_duration,
     qualities,
-    try_get,
+    remove_start,
+    strip_or_none,
 )
 
 
@@ -108,7 +109,7 @@ def _real_extract(self, url):
 
         categories = metadata.get('categoryPath')
         if not categories:
-            category = try_get(video, lambda x: x['category'].strip().removeprefix('category_'))
+            category = remove_start(strip_or_none(video.get('category')), 'category_')
             categories = [category] if category else None
         tags = video.get('tags')
 

yt_dlp/extractor/youtube.py

@@ -7792,9 +7792,9 @@ def _real_extract(self, url):
         raise ExtractorError(
             'Did you forget to quote the URL? Remember that & is a meta '
             'character in most shells, so you want to put the URL in quotes, '
-            'like  youtube-dl '
+            'like  yt-dlp '
             '"https://www.youtube.com/watch?feature=foo&v=BaW_jenozKc" '
-            ' or simply  youtube-dl BaW_jenozKc  .',
+            ' or simply  yt-dlp BaW_jenozKc  .',
             expected=True)
 
 

yt_dlp/options.py

@@ -631,13 +631,13 @@ def _alias_callback(option, opt_str, value, parser, opts, nargs):
         metavar='DATE', dest='datebefore', default=None,
         help=(
             'Download only videos uploaded on or before this date. '
-            'The date formats accepted is the same as --date'))
+            'The date formats accepted are the same as --date'))
     selection.add_option(
         '--dateafter',
         metavar='DATE', dest='dateafter', default=None,
         help=(
             'Download only videos uploaded on or after this date. '
-            'The date formats accepted is the same as --date'))
+            'The date formats accepted are the same as --date'))
     selection.add_option(
         '--min-views',
         metavar='COUNT', dest='min_views', default=None, type=int,
@@ -833,7 +833,7 @@ def _alias_callback(option, opt_str, value, parser, opts, nargs):
         '--prefer-free-formats',
         action='store_true', dest='prefer_free_formats', default=False,
         help=(
-            'Prefer video formats with free containers over non-free ones of same quality. '
+            'Prefer video formats with free containers over non-free ones of the same quality. '
             'Use with "-S ext" to strictly prefer free containers irrespective of quality'))
     video_format.add_option(
         '--no-prefer-free-formats',
@@ -907,13 +907,14 @@ def _alias_callback(option, opt_str, value, parser, opts, nargs):
     subtitles.add_option(
         '--sub-format',
         action='store', dest='subtitlesformat', metavar='FORMAT', default='best',
-        help='Subtitle format; accepts formats preference, e.g. "srt" or "ass/srt/best"')
+        help='Subtitle format; accepts formats preference separated by "/", e.g. "srt" or "ass/srt/best"')
     subtitles.add_option(
         '--sub-langs', '--srt-langs',
         action='callback', dest='subtitleslangs', metavar='LANGS', type='str',
         default=[], callback=_list_from_options_callback,
         help=(
-            'Languages of the subtitles to download (can be regex) or "all" separated by commas, e.g. --sub-langs "en.*,ja". '
+            'Languages of the subtitles to download (can be regex) or "all" separated by commas, e.g. --sub-langs "en.*,ja" '
+            '(where "en.*" is a regex pattern that matches "en" followed by 0 or more of any character). '
             'You can prefix the language code with a "-" to exclude it from the requested languages, e.g. --sub-langs all,-live_chat. '
             'Use --list-subs for a list of available language tags'))
 
@@ -1182,7 +1183,7 @@ def _alias_callback(option, opt_str, value, parser, opts, nargs):
         '--print-to-file',
         metavar='[WHEN:]TEMPLATE FILE', dest='print_to_file', nargs=2, **when_prefix('video'),
         help=(
-            'Append given template to the file. The values of WHEN and TEMPLATE are same as that of --print. '
+            'Append given template to the file. The values of WHEN and TEMPLATE are the same as that of --print. '
             'FILE uses the same syntax as the output template. This option can be used multiple times'))
     verbosity.add_option(
         '-g', '--get-url',
@@ -1226,7 +1227,7 @@ def _alias_callback(option, opt_str, value, parser, opts, nargs):
         '-J', '--dump-single-json',
         action='store_true', dest='dump_single_json', default=False,
         help=(
-            'Quiet, but print JSON information for each url or infojson passed. Simulate unless --no-simulate is used. '
+            'Quiet, but print JSON information for each URL or infojson passed. Simulate unless --no-simulate is used. '
             'If the URL refers to a playlist, the whole playlist information is dumped in a single line'))
     verbosity.add_option(
         '--print-json',
@@ -1570,7 +1571,7 @@ def _alias_callback(option, opt_str, value, parser, opts, nargs):
         help=(
             'Remux the video into another container if necessary '
             f'(currently supported: {", ".join(FFmpegVideoRemuxerPP.SUPPORTED_EXTS)}). '
-            'If target container does not support the video/audio codec, remuxing will fail. You can specify multiple rules; '
+            'If the target container does not support the video/audio codec, remuxing will fail. You can specify multiple rules; '
             'e.g. "aac>m4a/mov>mp4/mkv" will remux aac to m4a, mov to mp4 and anything else to mkv'))
     postproc.add_option(
         '--recode-video',
@@ -1676,7 +1677,7 @@ def _alias_callback(option, opt_str, value, parser, opts, nargs):
     postproc.add_option(
         '--xattrs', '--xattr',
         action='store_true', dest='xattrs', default=False,
-        help='Write metadata to the video file\'s xattrs (using dublin core and xdg standards)')
+        help='Write metadata to the video file\'s xattrs (using Dublin Core and XDG standards)')
     postproc.add_option(
         '--concat-playlist',
         metavar='POLICY', dest='concat_playlist', default='multi_video',
@@ -1684,7 +1685,7 @@ def _alias_callback(option, opt_str, value, parser, opts, nargs):
         help=(
             'Concatenate videos in a playlist. One of "never", "always", or '
             '"multi_video" (default; only when the videos form a single show). '
-            'All the video files must have same codecs and number of streams to be concatable. '
+            'All the video files must have the same codecs and number of streams to be concatenable. '
             'The "pl_video:" prefix can be used with "--paths" and "--output" to '
             'set the output filename for the concatenated files. See "OUTPUT TEMPLATE" for details'))
     postproc.add_option(
@@ -1694,8 +1695,8 @@ def _alias_callback(option, opt_str, value, parser, opts, nargs):
         help=(
             'Automatically correct known faults of the file. '
             'One of never (do nothing), warn (only emit a warning), '
-            'detect_or_warn (the default; fix file if we can, warn otherwise), '
+            'detect_or_warn (the default; fix the file if we can, warn otherwise), '
-            'force (try fixing even if file already exists)'))
+            'force (try fixing even if the file already exists)'))
     postproc.add_option(
         '--prefer-avconv', '--no-prefer-ffmpeg',
         action='store_false', dest='prefer_ffmpeg',
@@ -1714,7 +1715,7 @@ def _alias_callback(option, opt_str, value, parser, opts, nargs):
         help=(
             'Execute a command, optionally prefixed with when to execute it, separated by a ":". '
             'Supported values of "WHEN" are the same as that of --use-postprocessor (default: after_move). '
-            'Same syntax as the output template can be used to pass any field as arguments to the command. '
+            'The same syntax as the output template can be used to pass any field as arguments to the command. '
             'If no fields are passed, %(filepath,_filename|)q is appended to the end of the command. '
             'This option can be used multiple times'))
     postproc.add_option(
@@ -1785,14 +1786,14 @@ def _alias_callback(option, opt_str, value, parser, opts, nargs):
             'delim': None,
             'process': lambda val: dict(_postprocessor_opts_parser(*val.split(':', 1))),
         }, help=(
-            'The (case sensitive) name of plugin postprocessors to be enabled, '
+            'The (case-sensitive) name of plugin postprocessors to be enabled, '
             'and (optionally) arguments to be passed to it, separated by a colon ":". '
             'ARGS are a semicolon ";" delimited list of NAME=VALUE. '
             'The "when" argument determines when the postprocessor is invoked. '
             'It can be one of "pre_process" (after video extraction), "after_filter" (after video passes filter), '
             '"video" (after --format; before --print/--output), "before_dl" (before each video download), '
             '"post_process" (after each video download; default), '
-            '"after_move" (after moving video file to its final locations), '
+            '"after_move" (after moving the video file to its final location), '
             '"after_video" (after downloading and processing all formats of a video), '
             'or "playlist" (at end of playlist). '
             'This option can be used multiple times to add different postprocessors'))
@@ -1809,7 +1810,7 @@ def _alias_callback(option, opt_str, value, parser, opts, nargs):
         }, help=(
             'SponsorBlock categories to create chapters for, separated by commas. '
             f'Available categories are {", ".join(SponsorBlockPP.CATEGORIES.keys())}, all and default (=all). '
-            'You can prefix the category with a "-" to exclude it. See [1] for description of the categories. '
+            'You can prefix the category with a "-" to exclude it. See [1] for descriptions of the categories. '
             'E.g. --sponsorblock-mark all,-preview [1] https://wiki.sponsor.ajay.app/w/Segment_Categories'))
     sponsorblock.add_option(
         '--sponsorblock-remove', metavar='CATS',
@@ -1895,7 +1896,7 @@ def _alias_callback(option, opt_str, value, parser, opts, nargs):
     extractor.add_option(
         '--no-hls-split-discontinuity',
         dest='hls_split_discontinuity', action='store_false',
-        help='Do not split HLS playlists to different formats at discontinuities such as ad breaks (default)')
+        help='Do not split HLS playlists into different formats at discontinuities such as ad breaks (default)')
     _extractor_arg_parser = lambda key, vals='': (key.strip().lower().replace('-', '_'), [
         val.replace(r'\,', ',').strip() for val in re.split(r'(?<!\\),', vals)])
     extractor.add_option(

yt_dlp/utils/traversal.py

@@ -55,7 +55,7 @@ def traverse_obj(
     The keys in the path can be one of:
         - `None`:           Return the current object.
         - `set`:            Requires the only item in the set to be a type or function,
-                            like `{type}`/`{type, type, ...}/`{func}`. If a `type`, return only
+                            like `{type}`/`{type, type, ...}`/`{func}`. If a `type`, return only
                             values of this type. If a function, returns `func(obj)`.
         - `str`/`int`:      Return `obj[key]`. For `re.Match`, return `obj.group(key)`.
         - `slice`:          Branch out and return all values in `obj[key]`.
@@ -75,7 +75,7 @@ def traverse_obj(
 
         `tuple`, `list`, and `dict` all support nested paths and branches.
 
-    @params paths           Paths which to traverse by.
+    @params paths           Paths by which to traverse.
     @param default          Value to return if the paths do not match.
                             If the last key in the path is a `dict`, it will apply to each value inside
                             the dict instead, depth first. Try to avoid if using nested `dict` keys.